How are you? = Cómo es usted?
What is your name? = Qué es su nombre?
Where do you live? = Dónde vive usted?
How old are you? = Cuántos años tiene?

Close but not quite
How are you? = Cómo esta usted? or just Cómo estas?
What is your name? = Cual es su nombre? you can use tu instead of su (su is less friendly)
Where do you live? = Dónde vive usted? Good. Also= Dónde vives tu?
How old are you? = Cuántos años tiene? Good